/**
 * <copyright>
 * </copyright>
 *
 * $Id$
 */
package ms.jasim.model.event.provider;


import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

import ms.jasim.model.event.Event;
import ms.jasim.model.event.EventFactory;
import ms.jasim.model.event.EventPackage;
import ms.jasim.model.provider.JasimEditPlugin;
import ms.jasim.model.provider.NamedModelObjectItemProvider;

import org.eclipse.emf.common.notify.AdapterFactory;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.util.ResourceLocator;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.edit.provider.ComposeableAdapterFactory;
import org.eclipse.emf.edit.provider.IEditingDomainItemProvider;
import org.eclipse.emf.edit.provider.IItemLabelProvider;
import org.eclipse.emf.edit.provider.IItemPropertyDescriptor;
import org.eclipse.emf.edit.provider.IItemPropertySource;
import org.eclipse.emf.edit.provider.IStructuredItemContentProvider;
import org.eclipse.emf.edit.provider.ITreeItemContentProvider;
import org.eclipse.emf.edit.provider.ItemPropertyDescriptor;
import org.eclipse.emf.edit.provider.ViewerNotification;

/**
 * This is the item provider adapter for a {@link ms.jasim.model.event.Event} object.
 * <!-- begin-user-doc -->
 * <!-- end-user-doc -->
 * @generated
 */
public class EventItemProvider
	extends NamedModelObjectItemProvider
	implements
		IEditingDomainItemProvider,
		IStructuredItemContentProvider,
		ITreeItemContentProvider,
		IItemLabelProvider,
		IItemPropertySource {
	/**
	 * This constructs an instance from a factory and a notifier.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public EventItemProvider(AdapterFactory adapterFactory) {
		super(adapterFactory);
	}

	/**
	 * This returns the property descriptors for the adapted class.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public List<IItemPropertyDescriptor> getPropertyDescriptors(Object object) {
		if (itemPropertyDescriptors == null) {
			super.getPropertyDescriptors(object);

			addEnabledPropertyDescriptor(object);
			addHappenOncePropertyDescriptor(object);
		}
		return itemPropertyDescriptors;
	}

	/**
	 * This adds a property descriptor for the Enabled feature.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected void addEnabledPropertyDescriptor(Object object) {
		itemPropertyDescriptors.add
			(createItemPropertyDescriptor
				(((ComposeableAdapterFactory)adapterFactory).getRootAdapterFactory(),
				 getResourceLocator(),
				 getString("_UI_Event_Enabled_feature"),
				 getString("_UI_PropertyDescriptor_description", "_UI_Event_Enabled_feature", "_UI_Event_type"),
				 EventPackage.Literals.EVENT__ENABLED,
				 true,
				 false,
				 false,
				 ItemPropertyDescriptor.BOOLEAN_VALUE_IMAGE,
				 null,
				 null));
	}

	/**
	 * This adds a property descriptor for the Happen Once feature.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected void addHappenOncePropertyDescriptor(Object object) {
		itemPropertyDescriptors.add
			(createItemPropertyDescriptor
				(((ComposeableAdapterFactory)adapterFactory).getRootAdapterFactory(),
				 getResourceLocator(),
				 getString("_UI_Event_HappenOnce_feature"),
				 getString("_UI_PropertyDescriptor_description", "_UI_Event_HappenOnce_feature", "_UI_Event_type"),
				 EventPackage.Literals.EVENT__HAPPEN_ONCE,
				 true,
				 false,
				 false,
				 ItemPropertyDescriptor.BOOLEAN_VALUE_IMAGE,
				 null,
				 null));
	}

	/**
	 * This specifies how to implement {@link #getChildren} and is used to deduce an appropriate feature for an
	 * {@link org.eclipse.emf.edit.command.AddCommand}, {@link org.eclipse.emf.edit.command.RemoveCommand} or
	 * {@link org.eclipse.emf.edit.command.MoveCommand} in {@link #createCommand}.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public Collection<? extends EStructuralFeature> getChildrenFeatures(Object object) {
		if (childrenFeatures == null) {
			super.getChildrenFeatures(object);
			childrenFeatures.add(EventPackage.Literals.EVENT__PRECONDITION);
			childrenFeatures.add(EventPackage.Literals.EVENT__PARAMETERS);
			childrenFeatures.add(EventPackage.Literals.EVENT__POSTCONDITION);
		}
		return childrenFeatures;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	protected EStructuralFeature getChildFeature(Object object, Object child) {
		// Check the type of the specified child object and return the proper feature to use for
		// adding (see {@link AddCommand}) it as a child.

		return super.getChildFeature(object, child);
	}

	/**
	 * This returns the label text for the adapted class.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 */
	@Override
	public String getText(Object object) {
		Event event = (Event)object;
		String label = event.getName();
		String prefix = event.getLabel() != null && event.getLabel().length() > 0 ? event.getLabel() : 
			getString("_UI_Event_type");
		
		return (label == null || label.length() == 0 ?
			prefix : prefix + " " + label) + " " + (event.isTemplateObject() ? "" : event.isEnabled());
	}

	@Override
	public Object getImage(Object object) {
		return overlayImage(object, getResourceLocator().getImage("full/obj16/Event.png"));
	}
	
	/**
	 * This handles model notifications by calling {@link #updateChildren} to update any cached
	 * children and by creating a viewer notification, which it passes to {@link #fireNotifyChanged}.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void notifyChanged(Notification notification) {
		updateChildren(notification);

		switch (notification.getFeatureID(Event.class)) {
			case EventPackage.EVENT__ENABLED:
			case EventPackage.EVENT__HAPPEN_ONCE:
			case EventPackage.EVENT__LABEL:
				fireNotifyChanged(new ViewerNotification(notification, notification.getNotifier(), false, true));
				return;
			case EventPackage.EVENT__PRECONDITION:
			case EventPackage.EVENT__PARAMETERS:
			case EventPackage.EVENT__POSTCONDITION:
				fireNotifyChanged(new ViewerNotification(notification, notification.getNotifier(), true, false));
				return;
		}
		super.notifyChanged(notification);
	}

	/**
	 * This adds {@link org.eclipse.emf.edit.command.CommandParameter}s describing the children
	 * that can be created under this object.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	protected void collectNewChildDescriptors(Collection<Object> newChildDescriptors, Object object) {
		super.collectNewChildDescriptors(newChildDescriptors, object);

		newChildDescriptors.add
			(createChildParameter
				(EventPackage.Literals.EVENT__PRECONDITION,
				 EventFactory.eINSTANCE.createAbsoluteTime()));

		newChildDescriptors.add
			(createChildParameter
				(EventPackage.Literals.EVENT__PRECONDITION,
				 EventFactory.eINSTANCE.createEventRelativeTime()));

		newChildDescriptors.add
			(createChildParameter
				(EventPackage.Literals.EVENT__PRECONDITION,
				 EventFactory.eINSTANCE.createActionRelativeTime()));

		newChildDescriptors.add
			(createChildParameter
				(EventPackage.Literals.EVENT__PRECONDITION,
				 EventFactory.eINSTANCE.createSolutionInconsistent()));

		newChildDescriptors.add
			(createChildParameter
				(EventPackage.Literals.EVENT__PRECONDITION,
				 EventFactory.eINSTANCE.createCompositePrecondition()));
	}

	/**
	 * Return the resource locator for this item provider's resources.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public ResourceLocator getResourceLocator() {
		return JasimEditPlugin.INSTANCE;
	}

	@Override
	public Collection<?> getChildren(Object object) {
		ArrayList<Object> children = (ArrayList<Object>) super.getChildren(object);
		Event event = (Event) object;
		if (event.getPrecondition() == null)
			children.add(0, "Precondition: not set (right click to add)");
		return children;
	}
}
